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wwuene dab.C*rn Helena,lilt$77472-0711 •Billings,PAT 000-735-4489•Casper,WY 888-235-0515 <br /> A"WEan*a>a a IAv1 f Gillette,WY 866-666-7175•Rapid City,SD 886-672-1225•College Station,TX 868-690-2218 <br /> QA/QC Summary Report <br /> Prepared by Casper, WY Branch <br /> Client: Cotter Corporation Report Date: 07/03/14 <br /> Project: Schwartz-GW 6/19/14 S27586, S27587 Work Order: C14060762 <br /> Analyte Count Result Units RL %REC Low Limit High Limit RPD RPDLimit Qual <br /> Method: E903.0 Batch:RA226-7240 <br /> Lab ID: C14060399-001EMS Sample Matrix Spike Run: BERTHOLD 770-2_140624B 06/30/14 12:01 <br /> Radium 226 24 pCi/L 100 70 130 <br /> Lab ID: C14060399-001EMSD Sample Matrix Spike Duplicate Run: BERTHOLD 770-2_140624B 06/30/14 12:01 <br /> Radium 226 24 pCi/L 104 70 130 3.7 22.4 <br /> Lab ID: MB-RA226-7240 3 Method Blank Run:BERTHOLD 770-2 140624B 06/30/14 13:46 <br /> Radium 226 -0.1 pCi/L U <br /> Radium 226 precision (±) 0.09 pCi/L <br /> Radium 226 MDC 0.2 pCi/L <br /> Lab ID: LCS-RA226-7240 Laboratory Control Sample Run:BERTHOLD 770-2_140624B 06/30/14 13:46 <br /> Radium 226 12 pCi/L 111 80 120 <br /> Qualifiers: <br /> RL-Analyte reporting limit. ND-Not detected at the reporting limit. <br /> MDC-Minimum detectable concentration U-Not detected at minimum detectable concentration <br /> Page 25 of 29 <br />